P = 48x + 90
P = 6L
L = (48x + 90)/6
L = 8x + 15 (comprimento de cada lado)
Answer:
5x - 5
Step-by-step explanation:
To find the missing side, add the two sides together and subtract them from the perimeter.
side 1 + side 2
3x + 2 + 8x + 7
combine like terms
11x + 9
Subtract from the perimeter
16x + 4 - (11x + 9)
rewrite as an addition problem, so you need to change the signs inside the parentheses.
16x + 4 + (-11x -9)
Now combine like terms
5x - 5
I think that it will be unlikely because it is a 1/12 chance they will land on the star.
4^{-2} is the simplified version, exponents add or subtract when multipled, and the answer is .0625
